Gastroenteritis (vomiting and diarrhea) refers to any irritation or inflammation of the lining of the stomach or intestines. It is a common cause of acute vomiting and diarrhea. It is primarily due to a virus, but it may also result from bacterial or parasitic infections; antibiotic side effects; food allergies or food poisoning. Gastroenteritis is generally more severe in babies, children and the elderly.

Symptoms may include:

Abdominal pain and cramping

Nausea, vomiting, diarrhea, and loss of appetite

Blood in the stools due to microorganisms (tiny organisms that produce disease)

Talk to your doctor about preventing gastroenteritis while traveling in foreign countries.

What you can expect:

Most people recover from gastroenteritis within 5 days without complications.
Complications may include severe dehydration, electrolyte imbalance, and infections.

Contact your doctor if the nausea, vomiting, or diarrhea continues for more than a week, or if you notice blood in the stools. Contact your doctor if you notice signs of dehydration such as dry mouth, lack of tears, decreased amount of urination, or acting lethargic.